Finding the Third Proportional to 640,233 and 1,359,315

Step by Step Solution

1. Step 1: Write the proportion equation
   640,233 : 1,359,315 = 1,359,315 : x
2. Step 2: Convert to fraction form
   640,233/1,359,315 = 1,359,315/x
3. Step 3: Cross multiply
   640,233x = 1,359,315 × 1,359,315
4. Step 4: Simplify right side
   640,233x = 1,847,737,269,225
5. Step 5: Solve for x
   x = 1,847,737,269,225/640,233
6. Step 6: Final answer
   x = 2,886,038.78